This simple document only needs to promote its title to be
using the standard we're using for document texts.

Yet, IMHO, it would be worth merging this file with
Documentation/pnp.txt in the future.
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>